Question

In a certain race competition of $2100$ meters race, Vijay can cover a distance of $1$ km in $5$ minutes. Vijay beats Nandani by $100$ meters , What is the time taken by Nandani to cover the same distance ?

• A. $11.025$ min.
• B. $10.025$ min.
  
• C. $9.025$ min.
• D. $12.025$ min.

Answer 1

The correct option is A $11.025$ min.

Competition $=2100$ m
Vijay can cover $1000$m in $5$ min.

So, Vijay ran $2100$m in $\frac{5\times 2100}{1000}=10.5$ min

Vijay beats Nandani by $100$ m, it means Nandani covers $2000$m in $10.5$ min.

So, Nandani will take time to cover $2100$ m $=\frac{10.5\times 2100}{2000}=11.025$ minutes.